Critical behavior of the sandpile model as a self-organized branching process

被引：38
|
作者：
Ivashkevich, EV
机构：
[1] Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna
来源：
PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 18期
关键词：
D O I：
10.1103/PhysRevLett.76.3368
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Kinetic equations, which explicitly take into account the branching nature of sandpile avalanches, are derived. The dynamics of the sandpile model is described by the generating functions of a branching The real space renormalization group approach to the critical behavior of this model is formulated in terms of the generating functions describing in detail toppling processes inside the blocks. The obtained height probabilities and critical exponent tau = 1.248 are in excellent agreement with the corresponding exact values.
引用
收藏
页码：3368 / 3371
页数：4
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